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Abstract

The majority of studies on animal communication provide evidence that gestural signaling plays an important role in the communication of nonhuman primates and resembles that of pre-linguistic and just-linguistic human infants in some important ways. However, ape gestures also differ from the gestures of human infants in some important ways as well, and these differences might provide crucial clues for answering the question of how human language -- at least in its cognitive and social-cognitive aspects- evolved from the gestural communication of our ape-like ancestors. The present manuscript summarizes and compares recent studies on the gestural signaling of the great apes (Gorilla gorilla, Pan paniscus, Pan troglodytes, Pongo pygmaeus) to enable a comparison with gestures in children. We focused on the three following aspects: 1) nature of gestures, 2) intentional use of gestures, 3) and learning of gestures. Our results show, that apes have multifaceted gestural repertoires and use their gestures intentionally. Although some group-specific gestures seem to be acquired via a social learning process, the majority of gestures are learned via individual learning. Importantly, all of the intentional produced gestures share two important characteristics that make them crucially different from human deictic and symbolic gestures: 1) they are almost invariably used in dyadic contexts and 2) they are used exclusively for imperative purposes. Implications for these differences are discussed.

@inproceedings{pika06evolang,
  author={Simone Pika and Katja Liebal},
  title={Differences and similarities between the natural gestural communication of the great apes and human children},
  year={2006},
  pages={267-274},
  booktitle={Proceedings of the 6th International Conference on the Evolution of Language},
  url={http://groups.lis.illinois.edu/amag/langev/paper/pika06evolang.html}
}